Gabriel, I don't quite understand what you mean by "relevant."
All items you listed are "relevant," IMHO; by that, I mean that one can certainly draw a tremendous lot of beneficial, uplifting, inspiring stuff from the Canons, and from the writings of the Fathers, and from the hagiography, and from the Bible. On the other hand, none of the above is infillable; there are factual mistakes in every human writing (and I hope I understand it right that the inspiration of something by the Holy Spirit does not mean that the Holy Spirit eliminated everything human from those people who wrote this or this or that), so there are inaccuracies, inconsistencies, myths, un-truths, "urban legends" and what not in all of the above.
How to tell what's real from what's historical, superfluous, relative, etc. - well, that's always a million dollar question, but I am not worried much about it; I don't intend to spend my life in "theological discussions"; I think I'll just listen to the Church (beginning with my wonderful parish priest, our very own Fr. Chris), and, most importantly, pray, and listen to something like this, http://technorati.com/videos/youtube.com%2Fwatch%3Fv%3D4-18FVuQt5k
... and things will be alright...